CVE-2022-22743

Mozilla: Browser window spoof using fullscreen mode

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Severity

Important

Red Hat Product Security

7.5

CVSS 3.0

Review impact separately from score.

Published · January 11, 2022

Updated · November 21, 2025

Description

A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes this flaw as: When navigating from inside an iframe while requesting full screen access, an attacker-controlled tab could have made the browser unable to leave full screen mode.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 7.5
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-1021 · Improper Restriction of Rendered UI Layers or Frames